Mueller Adjustable Hinged Knee Brace 6455: * Metal Hinges Help Protect Knee Providing Medial and Lateral Support * Side Hinge Pockets Help Ensure Hinge Is In The Correct Position For Your Knee Size * Padded Buttress Helps Support Kneecap and Assist With Proper Tracking of Patella * Criss-Crossing Elastic Straps Above and Below Knee Offer Self-Adjusting Support As You Move * Open Patella Helps Stabilize Kneecap * Adjustable Tabs Provide Custom Fit For Controlled Compression * Open Back Helps Elimin Ate Bunching Behind Knee For Added Comfort